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E. A. SUTCLIFFE.

Governors for Engines.

Patented Aprl28,1874.

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manu A. snrcrirrrn, or New Yorin, N. Y.'

lhiFRQVElViENT EN GGVERNGRS FCR ENGlhlES.

Specification forming part ef Letters Patent No. fft, dated April 28,1874; application filed October 18, 1873.

To all whoml it may concern:

Be it known that I, ELIHU A. SUTGLIFFE, of the city and State of NewYork, have invented an Improvement in Governors for Engines, 85e., ot'which the following is a speeltication:

Iv make use ot' weights sliding upon horizontal, or nearly horizontal,arms, revolved by a spindle, and a spring acts to draw in the weights,and balance the centrifugal torce tending to throw ott' these weights.The partial revolving movement between the parts resulting when thespeed ot' revolution is increased or decreased is made operative byinclines to give motion to the valve or gate that opens or closes theoriiice for the steam or other material operating as force in theengine.

In the drawing, Figure l is a vertical section oet' the improvedgovernor, and lr ig. 2 is a sectional plan at the line x r.

The valve a is in the case l), between the supply and delivery pipes de. I prefer the cylindrical valve represented. The spindle c passesthrough the packing-gland j', and extends through the stationary gudgeong upon the frame 71, around which gudgeon g the pulley L' is revolved bya belt, l, or otherwise, driven b v the engine to be regulated orgoverned. 'llo the pulley L is attached a shell, l, extended upwardly bythe case m and cap a. From the case m the arms p extend, and upon thesethe governor balls or weights a slide; and it will be observed that thepulley la, ease mi, shell l, and parts carried by and contained in thesaine, all are revolved around the spindle e, and said spindle c onlyreceives an end movement, as hereafter described, when the speed varies.rihe weights a are connected, by iiat bands o, or cords or chains, withthe grooved disk r within'the case m; and hence, as the centrifugalforce throws the weights n farther out, this disk fr is moved relativelyto the case on and shell l. To this disk r the spring-barrel s isattached, and within the latter is the spring t, connected at its outerend to the barrel s, and at the inner end to the hub 2 of the shell l;and this spring t, acting to turn the disk r, tends to draw in theweights a. The power ot' this spring is increased or less ened byturning the case m and arms p upon the shell, and thereby winding up orunwinding such spring until its power is properly proportioned to theweights n and the velocity ot' rotation. The screw 3 secures these partswhen adjusted. A cross head, e, is introduced within the case m, and itsends enter inclined slots a, standing in reverse, so that the cross-headis raised or lowered by a partial revolution relatively to the case m,and this is ett'ected by the studs w, that project from the disk r andpass loosely through holes in this cross-head; and this cross-head alsohas a hole t'or the spindle c, and a washer or nut above and below thecross-head, so that said crosshead is free to revolve around thespindle, but it moves thc spindle endwise, tolessen or increase thesteamway ot' the valve, when the cross-head is moved up or down by theaction ot the weights on the spring to wind up the saine, or to allowthe spring to draw in the weights, as aforesaid.

rlhe spindle c might be in a horizontal position, but it is preferablewhen vertical.

The weights may be drawn inwardly by the revolving movement, actingthrough a pinion and racks, or otherwise, and this volute sp1-in g, andthe revolving movement therefrom, may be applied, in any convenientmanner, to operate upon the centrifugal weights.

I claim as my inventionl. The combination of a revolving shell, a volutespring, a dish, and governor-balls connected thereto, substantially asspecified.

2. lll e pulley 7o, shell l, case m, and springbarrel s, in combinationwith the arms p, weights a, and connections o, and the crosshead t andvalverod c, substantially as and' for the purposes set forth.

Signed by me this 15th day of October, A. D. 1873.

ELII'IU A. SUTCLIFFE.

Witnesses Gno. T. PrNcKNnY, Grnis. H. SMITH.

